The Komatsu WA250-5 Wheel Loader, designed for robust performance and reliability, represents a significant advancement in heavy equipment engineering. This model, applicable to serial numbers 72784 and up, is equipped with a Komatsu SAA6D102E-2 turbocharged, water-cooled, 4-stroke diesel engine, delivering 153 net horsepower. Its advanced Komatsu Dynamic Steering System (K-DS) with electronic-controlled powershift transmission, featuring 4 speeds forward and 4 reverse, ensures efficient operation across various demanding tasks. With an operating weight of 10,980 kg and a standard bucket capacity of 2.2 m³, the WA250-5 is engineered for productivity and durability in construction, mining, and material handling applications. This Operation & Maintenance Manual provides comprehensive guidance for the Komatsu WA250-5 Wheel Loader. It covers essential information including foreword, safety precautions, operational procedures, detailed maintenance schedules, and technical specifications. The manual is designed to assist owners, operators, and service technicians in understanding the machine's capabilities, performing routine maintenance, and troubleshooting potential issues. With 251 pages of detailed content, this English-language manual is an indispensable resource for ensuring the longevity and optimal performance of your WA250-5.